Stopping mechanism



April 17, 1934. H. B. COOLEY STOPPING MECHANISM Filed Feb. 1, 1933 3Sheets-Sheet l April 17, 1934.

H. B. COOLEY STOPPING MECHANISM Filed Feb. 1, 1953 3 Sheets-Sheet 2IIIIIIII l lllllll llll A ril 17, 1934. H. B. COOLEY STOPPING MECHANISMFiled Feb. 1, 1933 3 Sheets-Sheet 3 Patented Apr. 17, 1934 UNITED STATE:

STOPPING MEOHANI SM Application February 1,

12 Claims.

My invention relates to the class of devices which are employed forstopping the operations of machines, and an object of my invention,

I among others, is the production of a stopping mechanism that shall besimple in construction and sure and effective in its operation.

One form of a stopping mechanism embodying my invention and in theconstruction and use of which the objects herein setout, as well asothers, maybe attainedis illustrated in the accompanying drawings, inwhich Figure 1 is a view in side elevation of a cup making machineembodying my invention with parts'beyond omitted.

Figure '2 is a plan view of a portion of the machine shown in Fig. 1,parts being broken away to show construction underneath.

Figure '3 is a View in side elevation of a portion of the machinelooking in a direction opposite to that viewed in Figure 1 andillustrating some parts not shown in Figure 1.

Figure 4 is a view in section on a plane denoted bythe dotted line 44 ofFigures 2 and'3.

Figure 5 is a view insection on a plane denotedby the dotted line 5-5 ofFigure 3.

Figure=6 is 'a side'view of the bottom forming mechanism-shown in Figure3.

My invention is particularly applicable for stopping the operations ofmachines in which articles or devices being operated upon bythe machinesare moved past certain points or in which material of improper thicknesscaused by the'producers in overlapping the ends of strips to'splice orpiece them together maybe prevented from passing into the machines. Itwill be understood-that my invention is not limited to use in'machinesof any particular type, but as it is well adapted for use in connectionwith machines'for making cups from paper or other like material and inwhich the stopping mechanism hasbeen demonstrated by me, such a machinehasbeenadopted for the purpose of disclosure of my invention herein.Such machine embodies feeding mechanism generally denoted by the numeral6=and which comprises feed rolls and gumming mechanism 7with gummingrolls, all of which maybe interconnected by intermeshing gears andpinions, as shown in Fig. 1 of the drawings,--a detailed description ofsuch mechanism not'being necessary to a clear understanding ofmy'invention. The blanks are delivered by the feeding mechanism to cupforming mechanism, the turret 8 and mandr'els 9 thereon only of whichare shown herein.

:Brie'fly described the machine is driven by 1933, 'Serial No. 654,597

means of a belt applied to a driving pulley 10 loosely mounted on adriving shaft 11 havinga hand wheel 12 as a means for temporary manualoperation. The driving pulley is connected torthe driving shaft as bymeans of a clutch which may be of any well known construction, adetailed description of which is not necessary herein, it beingsufiicient to state that it embodies a cone 13 operating clutch fingers14, the cone having an annular groove to receive the fork of a shiftinglever which may be operated by a clutch actuating rod 15, shown in Fig.1, in a manner that will be readily understood.

The driving shaft 11 is connected by an intermeshing pinion and gear, asshown in Fig. 2, with a secondary shaft 15 said shafts being mountedlinside bars 17 comprising a part of the frame of the machine. The feedinsmechanism may be driven from said secondary shaft as by means of .asprocket chain 18 passing around a sprocket 19 secured to a shaft ofsaid feeding mechanism and a sprocket 20 secured to the shaft 16.

The shaft 16 also supports a sprocket 21 connected, as by means of achain 22, with a sprocket 23 secured to an intermediate shaft 24 mountedin bearings in the frame of the machine and connected by intermeshinggears preferably at opposite ends thereof with the opposite ends of aturret driving shaft 25, as shown in Figs. 1 and 2 of the drawings. Theshaft 24 is also connected I- as by means of a sprocket chain 26 andsprocket 2'? to drive a stop motion shaft 28 mounted on the frame of themachine underneath bottom forming mechanism 29, the structure of thelatter not being described in detail herein, it being" sufficient tostate that it comprises dies for cutting blanksto form cup bottoms froma strip 30 of paper or other comparatively thin material. All of themechanism thus far referred to has been described-in general terms, butits construction and operation will be readily understood by thoseskilled in the art and its application to the parts comprisingtheinvention to be hereinafter described will also be readily perceived.

It is briefly stated that the cup bottomsafter being cut and formed areinserted by said forming mechanism in recesses in the ends of saidmandrels 9 to be later forced out-of the recesses in the projectingbottom ends of cup bodies located on the mandrels.

After the completion of cups upon the mandrels 9, each last operationtaking place upon the mandrel 31, said cups are automatically removed inthe travel of said mandrels to the next position where the formation ofanother cup is begun. During this movement the mandrel 31 sweeps past achute 32 and the cup is removed from the mandrel by air pressure orsuction. This may be eflected as by means of a current of air deliveredinto the chute 32 through a pipe 69 cuts 'ing the chute beyond the mouththereof to create a partial vacuum between the pipe and said mouth towithdraw the cups from the mandrel. The cups may also be forced from themandrel as by pressure of air delivered through pipes 70 suitablyconnected with any source of pressure which is transmitted to theinterior of each the mandrels 31. Should a cup fail to be removed fromthe mandrel, mechanism now to be described is provided for stopping theop oration of the entire machine.

Such mechanism comprises gear 33 riven by an intermeshing pinion 34 onthe driving shaft 11, said gear 33 being loosely mounted on thesecondary 16. A clutch detent 35 having a tapered end to engage within asocket in a clutch disk 36 secured to the shaft 16 is spring pressed toengage said socket, and its tapered end is such that a certain amount ofresistance to rotation of the disk 36 will slip the detent out of ssockets and permit the gear 33 to rotate independently oi the shaft 15.

re step-by-step rotation of the turret 8 is effected by means of aso-called Geneva mechanism comprising a disk 37 rigidly connected with abevel gear 38 in mesh with a bevel pinion 39 secured to the shaft 25.Driving studs 40 project from the disk 37 and engage open ended radiallyformed slots in the member 41 rigidly connected with the turret shaft,and as shown in Fig. l and 2 of the drawings. At each engagement of astud 40 with a slot in the member 41 a onestep movement imparted to theturret in a manner that will be readily understood.

As a cup on the turret is moved from the positicn in which the formationof the cup is completed it is swept opposite the mouth of the chute 32into which it is forced as by the operation of the air currentshereinbefore described. Should, however, a cup fail to be removed fromthe mandrel at this point the bottom edge of said cup will strike a stopfinger 42 projecting from a stop motion actuating shaft 43 pivotallymounted in and projecting through a table 44 on which the turret mountedand having at its opposite end an arm 45 connected by a bar 46 with anarm 47 on a stop motion connecting shaft 43 pivotally mounted underneaththe table 44. The shaft 48 has an arm 49 connected by a bar 50 with stopdog 51 pivotally mounted on the frame of the machine, and as shown inFig. 3.

When the stop finger 42 is actuated by a cup retained on the mandrel, asjust described, the connecting mechanism just referred to projects theend of the dog 51 into the path of movement of a resistance lever 52secured to the shaft 28 and within a drum 53 secured to the shaft 28. Acushioning spring 54 within the drum resists movement of the lever 52and thereby acts as a cushion for the same. As the lever 52 strikes theend of the dog 51 now interposed in its path, as just described,resistance to movement of the shaft 28 takes place and this resistanceis communicated tothe shaft 16 through the sprocket 27, chain 26, shaft24, sprocket 23, chain sprocket 21, the shaft 16 and the disk 36 securedthereto. This resistance is suflloient to disengage the detent 35 fromits recess in said disk, thereby causing the gear 33 to rotate independently of the shaft 16, stopping the operaticn of the machine. Whenthe cause for stopping the machine is removed and pressure of the lever52 against the dog 51 is released a spring 67 secured at one end to thebar 50 and at its opposite end to the frame will return the parts totheir normal positions ready for another operation.

Another stop motion controlling mechanism in eludes a second stop finger55 extending from the shaft 43 into the path of a pivotally mountedactuating arm 56 which, when engaged with the finger 55, actuates theshaft 42 to effect stopping movement of the machine in the manner justdescribed. The arm 56 is secured to and projects from a shaft 5'?mounted in a bracket 58 and having an arm 59 connected by a rod 60 withthe foot 61 of a slide rod 62 mounted in a bracket 63 se ured to theframe 64 of the bottom forming mechanism supported on the table 44, asshown in Fig. 3 of the drawings, the bracket 58 being also secured tosaid frame.

A detector 65 is supported by the rod 62 and has a slot through whichone edge of the strip 30 from which the cup bottoms are formed projects,the width of said slot being governed by a gage screw 66 projecting intothe slot, and as shown in Fig. 5 of the drawings.

1 the strip 30 of paper or other thin material from which the cupbottoms are formed is too thick at any point, as soon as this th ckenedportion encounters the gage screw 66 binding action will follow and therod 62 will be moved downwardly, thereby moving the rod 60 and operatingthe arm 59 to swing the arm 56 into contact with the finger 55, therebystopping the machne as hereinbefore described. When the obstruction hasbeen removed a spring 68 on the rod 60 will return the parts to theirnormal positions, ready for another stopping operation.

In accordance with the provisions of the patent statutes I havedescribed the principles of operation of my invention together with thedevice which I now consider to represent the best embodiment thereof;but I desire to have it understood that the device shown is onlyillustrative, and that the invent on may be carried out by other meansand applied to uses other than those above set out.

I claim:

1. A cup making machine including a carrier having a mandrel to receivea blank, means for forming a blank into a cup body on said mandrel,

means for moving said carrer. means for removing said body from saidmandrel, a trip located between two stations and in an extended path oftravel of said body past said removing means and operative independentlyof said mandrel, and i projecting end of said body past said removingmeans and operative independently of sa d mandrel, and stop mechanismoperatively connected with said trip for operation thereby to stop saidmachine.

3. A cup making machine including a carrier having a mandrel to receivea blank, means'for forming a blank into a cup body on said mandrel, 1

means for moving said carrier, achute 'havin'g a mouth past which theend of said m andrelsweeps in its movement, a trip located in anextended path of travel of said blank past thefinouth of said chute andoperative independently *of s"a id mandrel, and stopping mechanism operatively connected with said trip'for operation therebytb stop saidmachine. H

1. A cup making machineincluding a carrier havfng a mandrel to receive ablank, means for forming a blank into a cup body on said mandrel, meansfor moving said carrier, mechanism for forming a cup bottom to beattached to said body on said mandrel, said mechanism including adetector engageable with a strip from which said bottom is formed, saiddetector including means for preventing passage therethrough of anexcess thickness in said strip and thereby to effect operation of saiddetector, means for removing formed bodies from sa d mandrel, a triplocated in an extended path of travel of said blank past said removingmeans, a stop mechanism operatively connected with said trip foroperation thereby to stop said machine, and an operative connectionbetween said detector and said trip for operation of the latter by theformer.

5. A cup making machine including a carrier having a mandrel to receivea blank, means for moving said carrier, means for forming a blank into acup body on said mandrel, mechanism for form ng a cup bottom to beattached to said body on aid mandrel, said mechanism including adetector engageable with a strip from which said bottom is formed saiddetector being mounted to move in the same direction as the direct on ofmovement of said strip and including means for eifecting movement ofsaid detector upon engagement thereby of an excess thickness of saidstrip, means for removing formed bodies from said mandrel, a triplocated in an extended path of travel of said blank past said removingmeans, a stopping mechanism operatively connected with said trip foroperation thereby to stop said machine, and an operative connectionbetween said trip and said detector for operation of the former bythelatter.

5. A cup making machine including a carrier having a mandrel to receivea blank, means for moving said carrier, means for forming a blank into acup body on said mandrel, mechanism for forming a cup bottom to beattached to said body on said mandrel, said mechanism including adetector engageable with a strip from which said bottom is formed, saiddetector including means for preventing passage of an excess thicknessof material in said strip and thereby to effect operation of saiddetector, means for removing formed bodies from said mandrel, a movablymounted stop actuating device, a trip finger projecting from said deviceinto an extended path of travel of said blank past said removing means,a second trip finger projecting from said device. and an operativeconnection with said detector, said connection including a membermovably mounted to contact with said second trip finger.

"I. A cup making machine including a carrier having a mandrel to receivea blank, means for moving said carrier, means for forming a blank into acup body on said mandrel, means for forming a cup bottom to be attachedto said body on said mandrel, said mechanism including a detectorengageable with a strip from which said bottom is formed, said detectorincluding means for preventing passage of an excess thickness ofmaterial in said strip andthereby to eflect "operation "of saiddetector, means for removing formed bodies-from the m'andrel, astopmotion mechanism, a connection between said detector and stop motionmechanism for operation of the latterby the formena trip finger locatedin an extended path of travel-of said blank past said removing means,anda connection between said trip fingerand the other connection foroperation of 'a portion of the latter independently of the other po'rtionthereof to operatesaidstopping mechanism.

8. A cup making machine including a carrier having a mandrel to receivea blank, means for moving said carrier, means for forming a blank into acup body on said mandrel, mechanism for forming a cup bottom to beattached to said body on said mandrel, said mechanism including adetector engageable with a strip from which said bottom is formed, saiddetector including means for preventing passage of an excess thicknessof material in said strip and thereby to effect operation of saiddetector, means for removing formed bodies from said mandrel, a stopmotion mechanism, an interrupted connection be tween said detector andsaid stop motion mechanism for operation of the latter, and a tripfinger projecting from a member of said connection into an extended pathof travel of said blank past said removing device to operate that partof said connection extending from the point of interruption to the stopmotion mechanism.

9. A cup making machine including a carrier having a mandrel to receivea blank, means for moving said carrier, means for forming a blank into acup body on said mandrel, mechanism for forming a cup bottom to beattached to said body on said mandrel, said mechanism including adetector engageable with a strip from which said bottom is formed, saiddetector including means for preventing passage of an excess thicknessof material in said strip and thereby to eifect operation of saiddetector, means effective only upon absence of a bottom in a cup bodyfor removing formed bodies from said mandrel, a movably mounted stopactuating member, a connection between said detector and said memberincluding an actuating arm for operation of said device by movement ofthe arm in one direction only, a stop motion mechanism, and an operativeconnection between said stop actuating device and said mechanism foroperation of the latter by the former.

10. A cup making machine including a carrier having a mandrel to receivea blank. means for moving said carrier, means for forming a blank into acup body on said mandrel, pneumatic means for removing formed bodiesfrom said mandrel, a trip finger located in an extended path of movementof said cups past the mouth of said pneumatic device and operativeindependently of said mandrel, a stop motion mechanism, and an operativeconnection between said finger and said stop motion mechanism foroperation of the latter by the former.

11. A cup making machine including a carrier having a mandrel to receivea blank, means for moving said carrier, means for forming a blank into acup body on said mandrel, mechanism for forming a cup bottom to beattached to said body on said mandrel, pneumatic means for removing onlycup bodies with bottoms therein from said mandrel, a stop motionmechanism, a stop actuating device located in an extended path of a cupbody past the mouth of said pneumatic removing device and operativeindependently of said mandrel, and an operative connection between saidactuating device and said stop motion mechanism for operation of thelatter by the former.

12. A cup making machine including a carrier having a mandrel to receivea blank, means for forming a blank into a cup body on said mandrel,

means for moving said carrier, mechanism for forming a cup bottom to beattached to said body on said mandrel, said mechanism including a

